info@demyol.com +90 (312) 443 04 72 +90 (312) 443 00 72
 
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OUR QUALITY CERTIFICATES

In the entire processes of Demyol Construction company, national and international product standards are ensured in accordance with the legal requirements of ISO 9001 Quality Management System, ISO 14001 Environmental Management System and within the framework of customer requests.

• ISO 9001: Quality Management System
• ISO 14001: Environmental Management System